1 /*
2  * Copyright (C) 2020 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #pragma once
18 
19 #include <binder/IServiceManager.h>
20 
21 #include <map>
22 
23 namespace android {
24 
25 /**
26  * A local host simple implementation of IServiceManager, that does not
27  * communicate over binder.
28 */
29 class ServiceManager : public IServiceManager {
30 public:
31     ServiceManager();
32 
33     /**
34      * Equivalent of checkService.
35      */
36     sp<IBinder> getService( const String16& name) const override;
37 
38     /**
39      * Retrieve an existing service, non-blocking.
40      */
41     sp<IBinder> checkService( const String16& name) const override;
42 
43     /**
44      * Register a service.
45      */
46     status_t addService(const String16& name, const sp<IBinder>& service,
47                         bool allowIsolated = false,
48                         int dumpsysFlags = DUMP_FLAG_PRIORITY_DEFAULT) override;
49 
50     /**
51      * Return list of all existing services.
52      */
53     Vector<String16> listServices(int dumpsysFlags = 0) override;
54 
55     IBinder* onAsBinder() override;
56 
57     /**
58      * Effectively no-oped in this implementation - equivalent to checkService.
59      */
60     sp<IBinder> waitForService(const String16& name) override;
61 
62     /**
63      * Check if a service is declared (e.g. VINTF manifest).
64      *
65      * If this returns true, waitForService should always be able to return the
66      * service.
67      */
68      bool isDeclared(const String16& name) override;
69 
70 private:
71     std::map<String16, sp<IBinder>> mNameToService;
72 };
73 
74 }  // namespace android
75